Regression(r247486) Multiple Layout Tests in http/tests/cache/* are crashing on iOS Debug WK2

[Russell Epstein]

The following layout tests are flaky crashes on iOS Debug WK2.

Flaky Crashes:
http/tests/cache/stopped-revalidation.html
http/tests/cache/reload-main-resource.php

One-off Crash?:
http/tests/cache/partitioned-cache.html

Steps to Reproduce:

Having difficulty reproducing these crashes locally.


Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2Fcache%2Fstopped-revalidation.html%20http%2Ftests%2Fcache%2Fpartitioned-cache.html%20http%2Ftests%2Fcache%2Freload-main-resource.php

Sample Crashlog:

No crash log found for com.apple.WebKit.Networking.Development:70084.

stdout:

stderr:
ERROR: Unhandled web process message 'WebUserContentController:RemoveAllContentRuleLists'
/Volumes/Data/slave/ios-simulator-12-debug/build/Source/WebKit/WebProcess/WebProcess.cpp(768) : virtual void WebKit::WebProcess::didReceiveMessage(IPC::Connection &, IPC::Decoder &)
ERROR: Unhandled web process message 'WebUserContentController:RemoveAllContentRuleLists'
/Volumes/Data/slave/ios-simulator-12-debug/build/Source/WebKit/WebProcess/WebProcess.cpp(768) : virtual void WebKit::WebProcess::didReceiveMessage(IPC::Connection &, IPC::Decoder &)
SHOULD NEVER BE REACHED
/Volumes/Data/slave/ios-simulator-12-debug/build/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp(234) : virtual void WebKit::NetworkConnectionToWebProcess::didReceiveMessage(IPC::Connection &, IPC::Decoder &)
1   0x115385389 WTFCrash
2   0x1046dfa6b WTFCrashWithInfo(int, char const*, char const*, int)
3   0x1049850ec WebKit::NetworkConnectionToWebProcess::didReceiveMessage(IPC::Connection&, IPC::Decoder&)
4   0x104751c09 IPC::Connection::dispatchMessage(IPC::Decoder&)
5   0x10474a6e9 IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)
6   0x104752713 IPC::Connection::dispatchOneIncomingMessage()
7   0x104771d0b IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_11::operator()()
8   0x104771c29 WTF::Detail::CallableWrapper<IPC::Connection::enqueueIncomingMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >)::$_11, void>::call()
9   0x1153b21ca WTF::Function<void ()>::operator()() const
10  0x11541afb3 WTF::RunLoop::performWork()
11  0x11541c39e WTF::RunLoop::performWork(void*)
12  0x10dfb3be1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__
13  0x10dfb3463 __CFRunLoopDoSources0
14  0x10dfadb1f __CFRunLoopRun
15  0x10dfad302 CFRunLoopRunSpecific
16  0x1041ac044 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
17  0x1041ac1e4 -[NSRunLoop(NSRunLoop) run]
18  0x10fb50c66 _xpc_objc_main
19  0x10fb5310a xpc_main
20  0x104d44ca7 WebKit::XPCServiceMain(int, char const**)
21  0x105cdc06b WKXPCServiceMain
22  0x10406fc22 main
23  0x10f889541 start
LEAK: 1 WebPageProxy

[Radar WebKit Bug Importer]

<rdar://problem/53230217>

[Chris Dumez]

Looking into it now.

[Chris Dumez]

Created attachment 374389 [details]
Patch

[Geoffrey Garen]

Comment on attachment 374389 [details]
Patch

r=me

[WebKit Commit Bot]

Comment on attachment 374389 [details]
Patch

Clearing flags on attachment: 374389

Committed r247565: <https://trac.webkit.org/changeset/247565>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.